Iodic acid crystal physical properties

Crystal symmetry: 222

Density: 4,629 g/cm^3

Optical spectral range: 0,4 - 1,3 mkm

Elastic constants : 10^11 dyn/cm^2 or 10^10 Pa)

2.995	1.154	0.514	0	0	0
1.154	5.386	2.193	0	0	0
0.514	2.193	4.353	0	0	0
0	0	0	1.835	0	0
0	0	0	0	1.106	0
0	0	0	0	0	1.736

Photolastic constants :

0.406	0.277	0.304	0	0	0
0.279	0.343	0.305	0	0	0
0.503	0.31	0.334	0	0	0
0	0	0	0.27	0	0
0	0	0	0	0.2	0
0	0	0	0	0	0.092

Refraction indices:

The values for refraction coefficients for the given optical wavelengths.

wavelength, mkm	refraction index X axis	refraction index Y axis	refraction index Z axis
0.45	1.8798	2.056	2.0184
0.5325	1.8547	2.0103	1.9829
0.6	1.8409	1.9922	1.9665
0.65	1.8352	1.9812	1.9571
0.7	1.8308	1.9765	1.9505
0.8	1.825	1.9672	1.9407
0.9	1.8206	1.9595	1.9347
1	1.8147	1.9537	1.9292
1.1	1.8116	1.9484	1.926
1.2	1.8086	1.9436	1.923

Sound velocity:

direction	polarization	v (10^5 cm/s)
[010]	[010]	2.89
[001]	[001]	2.44
[100]	[100]	3.56
[100]	[010]	1.84

Iodic acid slowness surfaces in important planes

Acousto-optic figure of merit:

sound dir.	sound pol.	light dir.	light pol.	M (10^-18 s^3/g)
[100]	[100]	[001]	[100]	31.8
[100]	[100]	[001]	[010]	13.8
[100]	[100]	[010]	[001]	30.5
[010]	[010]	[001]	[100]	27.6
[010]	[010]	[001]	[010]	39
[010]	[010]	[100]	[001]	21.7
[001]	[001]	[100]	[010]	51.4
[001]	[001]	[010]	[100]	55.2
[001]	[001]	[100]	[001]	41.7
[010]	[100]	[001]	[100]	11.3